A coffee bean is the seed of the coffee plant.
The coffee cherries contain two parts with their sides
together.Coffee beans consist of endosperm that contains
0.8 - 2.5 % caffeine, that is one of the reasons the plants
are cultivated. coffee is one of the most widely consumed
beverages in the world.

coffee beans


Structure of coffee berry and coffee beans:

1-center cut
3-silver skin
4- parchment
5-pectin layer
7- outer skin